During turning of a low carbon steel bar with TiN coated carbide insert, one needs to improve surface finish without sacrificing material removal rate. The achieve improved surface finish one should

Decrease nose radius of the cutting tool and increase depth of cut

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Increase nose radius of the cutting tool

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Increase food and reduce nose radius of the cutting tool

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Increase depth of cut and increase feed

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Solution

The correct option is B Increase nose radius of the cutting tool
With increase of nose radius, the surface finish is improved without affecting MRR

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A steel bar $200 m m$ in diameter is turned at a feed of $0.25 m m / r e v$ with a depth of cut of $4 m m$ . The rotational speed of the workpiece is $160 r p m$ . The material removal rate in $m m^{3} / s$ is

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During turning of a low carbon steel bar with TiN coated carbide insert, one needs to improve surface finish without sacrificing material removal rate. The achieve improved surface finish one should

The correct option is B Increase nose radius of the cutting toolWith increase of nose radius, the surface finish is improved without affecting MRR

The correct option is B Increase nose radius of the cutting tool
With increase of nose radius, the surface finish is improved without affecting MRR